hehhe nice pic
seriously though, nice build, i'm kinda new to all this so it's always good to read through logs like this, i always seem to come across little things like you found with your rad not fitting level because of some clips or something that get in the way, although in that example, i'd guess it helps to stop any air getting trapped in the section of the RAD furthest from the barbs
I liked the thinking behind the fitment at the top rather than the side, i'm not going to have that luxury, as even a top fit is likely to interfere with removing the board, and i'll be tight on fitting fullstop !
Those little ASUS fans - how do you find them ? as i think i'm going to be ending up using 2 of them
I was interested to see how you set the loop up in relation to the dual rads, so obviously i read through the whole thread

... were you ever tempted to route...
Reservoir> Pump> CPU> Front rad> GPU's> Top rad> Reservoir
or similar configuration separating the water-blocks with a RAD ?